Billy Nelson is back home in Belfast, but the Troubles have cut this
ex-Army Loyalist hard man deep and his city's allegiances have shifted.
An outbreak of gang violence forces him to Edinburgh, where he muscles
in on the drug trade. Underworld rivalries between Edinburgh, Glasgow,
and Belfast spill onto the streets. The pressure mounts for Grace
Macallan, new superintendent of the Crime & Counter Terrorism
Directorate. Troubled by her own demons and with everyone baying for the
blood of Billy Nelson, can Grace hold her nerve?